topic Re: How clip feature by selection (similar to clip in editor tool) using Arcobjects .net in ArcObjects SDK Questions

How clip feature by selection (similar to clip in editor tool) using Arcobjects .net

chandra_sekhar_reddyguda — Sat, 16 Jul 2016 10:15:18 GMT

I have a Building FeatureClass, where having different features like ground structure, super structure and extensions.....,

now i want to

clip ground structure where super structure contains (means creating dunut) inside of ground structure
clip which ever polygon come inside of ground structure

Not excepting Batch Process.. i have to perform this manually by selecting each building

Anonymous User — Wed, 03 Aug 2016 16:32:28 GMT

The editor's clip tool uses either ITopologicalOperator Difference or Intersect to perform the clip, with a bunch of logic either side.

In your case the flow would be something like:

Assuming Super St is selected, use it to find the polygons underneath (Ground St) with a spatial search.

Use ITopologicalOperator.Difference to 'cut' Super St out of Ground St.

Use the output geometry from that method as the new shape for Ground St.

Delete Super St (if required)

chandra_sekhar_reddyguda — Thu, 04 Aug 2016 03:49:31 GMT

Thanks Jones,

According to your hint ,I used ITopological.Difference in order to get desired output. Finally data cleaned correctly without any further issues.

Regards,

Chandra Sekhar Guda